Results 11 to 20 of about 36,124 (299)

Reionization Histories of Milky Way Mass Halos [PDF]

, 2013
We investigate the connection between the epoch of reionization and the present day universe, by examining the extended mass reionization histories of dark matter halos identified at z=0. We combine an N-body dark matter simulation of a 600 Mpc volume with a three-dimensional, seminumerical reionization model.
Abel, Tom, Alvarez, Marcelo A., Li, Tony Y., Wechsler, Risa H.   +3 more
arxiv   +4 more sources

Studying Reionization with Ly-alpha Emitters [PDF]

Mon.Not.Roy.Astron.Soc. 381: 75-96, 2007, 2007
We show that observations of high-redshift Ly-alpha emitters (LAEs) have the potential to provide definitive evidence for reionization in the near future. Using 200 Mpc radiative transfer simulations, we calculate the effect that patchy reionization has on the line profile, on the luminosity function, and, most interestingly, on the clustering of ...
Babich, Barton, Becker, Becker, Bolton, Casali, Croton, Cuby, De Vos, Dekel, Dijkstra, Dijkstra, Dijkstra, Fan, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Gardner, Haiman, Haiman, Hansen, Horton, Hui, Iliev, Iye, Kashikawa, Kauffmann, Keating, Kodaira, Landy, Lars Hernquist, Lidz, Lidz, Liu, Loeb, Madau, Malhotra, Malhotra, Matias Zaldarriaga, Matthew McQuinn, McPherson, McQuinn, McQuinn, McQuinn, Mesinger, Mesinger, Miralda-Escude, Morales, Neufeld, Osterbrock, Ouchi, Ouchi, Page, Partridge, Pen, Pritchard, Rhoads, Santos, Santos, Shapley, Sheth, Sheth, Shimasaku, Sokasian, Sokasian, Sokasian, Spergel, Spergel, Springel, Springel, Stark, Stark, Suvendra Dutta, Taniguchi, Tapken, Tasitsiomi, Thommes, Totani, White, White, Willis, Wyithe, Wyithe, Zahn, Zahn, Zaldarriaga   +88 more
arxiv   +3 more sources

The 21 Centimeter Forest [PDF]

Mon.Not.Roy.Astron.Soc.370:1867-1875,2006, 2006
We examine the prospects for studying the pre-reionization intergalactic medium (IGM) through the so-called 21 cm forest in spectra of bright high-redshift radio sources. We first compute the evolution of the mean optical depth for models that include X-ray heating of the IGM gas, Wouthuysen-Field coupling, and reionization.
Barkana, Barkana, Becker, Bouwens, Carilli, Chen, Ciardi, Ciardi, Dijkstra, Fan, Fan, Field, Field, Field, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Gilfanov, Glover, Gnedin, Grimm, Haiman, Hirata, Hogan, Iliev, Iliev, Iliev, Iliev, Ioka, Kitayama, Kuhlen, Liszt, Madau, Malhotra, Navarro, Oh, Oh, Page, Press, Pritchard, Ranalli, Schaye, Scott, Seager, Shapiro, Sheth, Smith, Spergel, Steven R. Furlanetto, Taniguchi, Thoul, Wouthuysen, Zahn, Zaldarriaga, Zygelman   +60 more
arxiv   +3 more sources

Detecting Helium Reionization with Fast Radio Bursts [PDF]

Phys. Rev. D 101, 103019 (2020), 2020
Fast radio bursts (FRB) probe the electron density of the universe along the path of propagation, making high redshift FRB sensitive to the helium reionization epoch. We analyze the signal to noise with which a detection of the amplitude of reionization can be made, and its redshift, for various cases of future FRB survey samples, assessing survey ...
Linder, Eric V.
arxiv   +3 more sources

Simulating intergalactic medium reionization [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
10 pages, 9 figures, minor revisions, in press, MNRAS 343 (2003) 1101 ...
B. Ciardi, F. Stoehr, Simon D. M. White
openalex   +6 more sources

How does radiative feedback from a UV background impact reionization? [PDF]

, 2013
An ionizing UV background (UVB) inhibits gas accretion and photo-evaporates gas from the shallow potential wells of small, dwarf galaxies. During cosmological reionization, this effect can result in negative feedback: suppressing star-formation inside HII regions, thus impeding their continued growth.
Mesinger, Andrei, Sobacchi, Emanuele
arxiv   +3 more sources

1,1-Ethenediol: The Long Elusive Enol of Acetic Acid. [PDF]

Angew Chem Int Ed Engl, 2020
Finally made: The hitherto unreported 1,1‐ethenediol, the higher energy tautomer of acetic acid, was synthesized and spectroscopically characterized. It can be readily prepared through thermal decarboxylation of malonic acid, as has generally often been implied in the synthetically highly valuable reactions of 1,3‐dicarboxylic acids.
Mardyukov A, Eckhardt AK, Schreiner PR.
europepmc   +2 more sources

CMB Neutrino Mass Bounds and Reionization [PDF]

Phys.Rev.D82:087302,2010, 2010
Current cosmic microwave background (CMB) bounds on the sum of the neutrino masses assume a sudden reionization scenario described by a single parameter that determines the onset of reionization. We investigate the bounds on the neutrino mass in a more general reionization scenario based on a principal component approach. We found the constraint on the
Alessandro Melchiorri, Asantha Cooray, Maria Archidiacono, Stefania Pandolfi, Y. B. Zel’dovich   +4 more
arxiv   +5 more sources

High resolution simulations of the reionization of an isolated Milky Way - M31 galaxy pair [PDF]

, 2013
We present the results of a set of numerical simulations aimed at studying reionization at galactic scale. We use a high resolution simulation of the formation of the Milky Way-M31 system to simulate the reionization of the local group. The reionization calculation was performed with the post-processing radiative transfer code ATON and the underlying ...
Aubert, D., Chardin, J., Gottlöber, S., Hoffman, Y., Knebe, A., Libeskind, N., Ocvirk, P., Yepes, G.   +7 more
arxiv   +5 more sources

Galaxy Formation and Reionization: Key Unknowns and Expected Breakthroughs by the James Webb Space Telescope [PDF]

Annual Review of Astronomy and Astrophysics, 2021
The launch of the James Webb Space Telescope (JWST) in late 2021 marks a new start for studies of galaxy formation at high redshift ( z ≳ 6) during the era of cosmic reionization.
B. Robertson
semanticscholar   +1 more source